GB1561544A - Tuning apparatus for radio frequency especially television receivers - Google Patents
Tuning apparatus for radio frequency especially television receivers Download PDFInfo
- Publication number
- GB1561544A GB1561544A GB46208/76A GB4620876A GB1561544A GB 1561544 A GB1561544 A GB 1561544A GB 46208/76 A GB46208/76 A GB 46208/76A GB 4620876 A GB4620876 A GB 4620876A GB 1561544 A GB1561544 A GB 1561544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- signal
- carrier
- local oscillator
- programmable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 23
- 230000004044 response Effects 0.000 claims description 18
- 239000000969 carrier Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 4
- 238000000926 separation method Methods 0.000 claims 2
- 239000013078 crystal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 241000894339 Matucare virus Species 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
- H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Television Receiver Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63206075A | 1975-11-14 | 1975-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1561544A true GB1561544A (en) | 1980-02-20 |
Family
ID=24533910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46208/76A Expired GB1561544A (en) | 1975-11-14 | 1976-11-05 | Tuning apparatus for radio frequency especially television receivers |
Country Status (15)
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0028100A1 (en) * | 1979-10-16 | 1981-05-06 | Sanyo Electric Co., Ltd. | Tuning control apparatus for a receiver |
| EP0042728A1 (en) * | 1980-06-17 | 1981-12-30 | Sanyo Electric Co., Ltd. | Tuning control apparatus of receiver having electronic tuner |
| US4442413A (en) * | 1979-04-10 | 1984-04-10 | Tokyo Shibaura Denki Kabushiki Kaisha | Television receiver phase locked loop tuning arrangement |
| US9136955B2 (en) | 2009-06-30 | 2015-09-15 | Thomson Licensing | Method of resending digital signals |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU514310B2 (en) * | 1976-05-21 | 1981-02-05 | Rca Corp. | Tuner with pll |
| GB1564375A (en) * | 1977-09-07 | 1980-04-10 | Marconi Co Ltd | Frequency generators |
| JPS56162527A (en) * | 1980-05-20 | 1981-12-14 | Toshiba Corp | Controller of television receiver |
| US4521918A (en) * | 1980-11-10 | 1985-06-04 | General Electric Company | Battery saving frequency synthesizer arrangement |
| ES8406020A1 (es) * | 1982-09-01 | 1984-06-16 | Rca Corp | "perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television" |
| US4503465A (en) * | 1982-11-24 | 1985-03-05 | Rca Corporation | Analog signal comparator using digital circuitry |
| EP0302290B1 (en) * | 1987-08-03 | 1994-12-14 | Motorola Inc. | Automatic frequency control system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL166828C (nl) * | 1971-05-08 | 1981-09-15 | Matsushita Electric Ind Co Ltd | Automatische kanaalkies-inrichting. |
| JPS4943084Y2 (enrdf_load_html_response) * | 1971-06-29 | 1974-11-26 | ||
| JPS4841361A (enrdf_load_html_response) * | 1971-09-28 | 1973-06-16 | ||
| JPS555729B2 (enrdf_load_html_response) * | 1971-11-29 | 1980-02-08 | ||
| DE2211664A1 (de) * | 1972-03-10 | 1973-09-20 | Loewe Opta Gmbh | Abstimmeinheit fuer hochfrequenzempfangsgeraete |
| JPS5228321B2 (enrdf_load_html_response) * | 1972-03-15 | 1977-07-26 | ||
| US3803494A (en) * | 1972-04-07 | 1974-04-09 | Bendix Corp | Pulse tuning control system for radio receivers |
| DE2217002B2 (de) * | 1972-04-08 | 1976-04-15 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Empfaenger fuer einseitenbandmodulierte sender in einem festen traegerfrequenzraster |
| DE2333852A1 (de) * | 1973-07-03 | 1975-01-23 | Standard Elektrik Lorenz Ag | Ueberlagerungsempfaenger mit einer digital einstellbaren abstimmanordnung |
| DE2333851A1 (de) * | 1973-07-03 | 1975-01-23 | Standard Elektrik Lorenz Ag | Verfahren und anordnungen zur selbsttaetigen nachregelung der mit einer abstimmanordnunggeingestellten oszillatorfrequenz eines ueberlagerungsempfangsteils einer bild und/oder tonwiedergabeanordnung |
| IT1036497B (it) * | 1975-07-11 | 1979-10-30 | Indesit | Circuito selezionatore di emittente in un ricevitore di segnali |
-
1976
- 1976-10-15 IT IT28406/76A patent/IT1073074B/it active
- 1976-11-05 GB GB46208/76A patent/GB1561544A/en not_active Expired
- 1976-11-09 CA CA000265196A patent/CA1175586A/en not_active Expired
- 1976-11-10 DE DE2651297A patent/DE2651297C3/de not_active Expired
- 1976-11-12 ES ES453293A patent/ES453293A1/es not_active Expired
- 1976-11-12 FR FR7634164A patent/FR2331917A1/fr active Granted
- 1976-11-12 FI FI763252A patent/FI66269C/fi not_active IP Right Cessation
- 1976-11-12 PL PL1976193671A patent/PL114951B1/pl unknown
- 1976-11-12 MX MX100401U patent/MX3472E/es unknown
- 1976-11-12 BE BE172309A patent/BE848283A/xx not_active IP Right Cessation
- 1976-11-12 AU AU19581/76A patent/AU512493B2/en not_active Expired
- 1976-11-15 NL NLAANVRAGE7612666,A patent/NL188065C/xx not_active IP Right Cessation
- 1976-11-15 AT AT0848976A patent/AT377878B/de active
- 1976-11-15 JP JP51137712A patent/JPS5828932B2/ja not_active Expired
-
1978
- 1978-11-24 IT IT30200/78A patent/IT1100758B/it active
-
1979
- 1979-03-09 SE SE7902170A patent/SE430200B/sv not_active IP Right Cessation
-
1980
- 1980-11-14 JP JP55161310A patent/JPS5829655B2/ja not_active Expired
-
1982
- 1982-01-05 FR FR8200051A patent/FR2495407B1/fr not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442413A (en) * | 1979-04-10 | 1984-04-10 | Tokyo Shibaura Denki Kabushiki Kaisha | Television receiver phase locked loop tuning arrangement |
| EP0028100A1 (en) * | 1979-10-16 | 1981-05-06 | Sanyo Electric Co., Ltd. | Tuning control apparatus for a receiver |
| EP0042728A1 (en) * | 1980-06-17 | 1981-12-30 | Sanyo Electric Co., Ltd. | Tuning control apparatus of receiver having electronic tuner |
| US4476580A (en) * | 1980-06-17 | 1984-10-09 | Sanyo Electric Co., Ltd. | Automatic continuous tuning control apparatus for a receiver |
| US9136955B2 (en) | 2009-06-30 | 2015-09-15 | Thomson Licensing | Method of resending digital signals |
Also Published As
| Publication number | Publication date |
|---|---|
| FI66269C (fi) | 1984-09-10 |
| IT1073074B (it) | 1985-04-13 |
| IT1100758B (it) | 1985-09-28 |
| FR2495407A1 (fr) | 1982-06-04 |
| NL188065B (nl) | 1991-10-16 |
| FR2495407B1 (fr) | 1986-01-17 |
| IT7830200A0 (it) | 1978-11-24 |
| NL7612666A (nl) | 1977-05-17 |
| JPS5828932B2 (ja) | 1983-06-18 |
| SE7902170L (sv) | 1979-03-09 |
| NL188065C (nl) | 1992-03-16 |
| FI66269B (fi) | 1984-05-31 |
| DE2651297A1 (de) | 1977-05-26 |
| DE2651297C3 (de) | 1987-04-16 |
| CA1175586A (en) | 1984-10-02 |
| FR2331917B1 (enrdf_load_html_response) | 1982-07-09 |
| SE430200B (sv) | 1983-10-24 |
| AU512493B2 (en) | 1980-10-16 |
| AU1958176A (en) | 1978-05-18 |
| BE848283A (fr) | 1977-03-01 |
| PL114951B1 (en) | 1981-03-31 |
| JPS5829655B2 (ja) | 1983-06-24 |
| MX3472E (es) | 1980-12-09 |
| ES453293A1 (es) | 1977-11-16 |
| AT377878B (de) | 1985-05-10 |
| JPS5261904A (en) | 1977-05-21 |
| DE2651297B2 (de) | 1979-03-29 |
| JPS5696523A (en) | 1981-08-04 |
| FI763252A7 (enrdf_load_html_response) | 1977-05-15 |
| ATA848976A (de) | 1984-09-15 |
| FR2331917A1 (fr) | 1977-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19961104 |